redingote
double- or single-breasted overcoat with flared skirts, sometimes open in the front to reveal garments underneath, usually with large collars and lapels
en-US/ˈɹɛdɪŋˌɡoʊt/
double- or single-breasted overcoat with flared skirts, sometimes open in the front to reveal garments underneath, usually with large collars and lapels